Region
United States
58
Europe
9
North America
5
Africa
4
Antarctica
4
Arctic regions
4
Asia
4
Asia, Central
4
Colorado
4
Cold regions
3
Europe, Eastern
3
Mediterranean Sea
3
Polar regions
3
Africa, Eastern
2
Balkan Peninsula
2
Europe, Central
2
Great Britain
2
Great Lakes (North America)
2
Latin America
2
Mediterranean Region
2
Pacific Area
2
Pacific Ocean
2
Southwestern States
2
Sweden
2
Tropics
2
Africa South of the Sahara
1
Africa, East
1
Africa, North
1
Africa, Sub-Saharan
1
Alpes de Haute-Provence (France)
1
Archuleta County
1
Argentina
1
Atlantic Ocean
1
Australia
1
Awash River Valley
1
Awash River Valley (Ethiopia)
1
Baghdad
1
Baghdad (Iraq)
1
Boston
1
Brazil
1
Canada
1
Canada, Eastern
1
Caribbean Area
1
Carlsbad Region
1
China
1
Dolores County
1
East China Sea
1
Ethiopia
1
Eurasia
1
European Union countries
1
more ...